MLA

Sullivan, W. F. (William Francis), 1756-1830. A monody on the lamented death of Her Most Gracious Majesty, Queen Caroline. [1821]. https://collections.library.yale.edu/catalog/33117146.

APA, 6th edition

Sullivan, W. F. (William Francis), 1756-1830. ([1821])[A monody on the lamented death of Her Most Gracious Majesty, Queen Caroline]. https://collections.library.yale.edu/catalog/33117146.